Microscope.



w. L. PATTERSON & G. A. H. KELLNER.

MICROSCOPE.

APPLICATION FILED APR. 9. 1911. 17,283,884.

Patented N ov. 5, 1918.

'2f 05M? I (/mm (ro/mers Y UNiTED STATES PATENT oEEioE.

WILLIAM L. PATTERSON AND GUSTAV A. H. KELLNEB, OF{ROCHESTEB, NEW YORK,

ASSIGNORS TO BAUSCI-Id: LOMB OPTIAL CO.,1 OF ROCHESTER, NEW YORK, A CORPO- RATION OF NEW YORK.'

Spectieatioii` of Letten Patent.

MICBOSCOPE.

Patented Nov. 5, 1918.

'original `application inea December 27, isis, serial No. caen. Divided and this 'application ined April 9,

1917.l serinnmisonai.

Toy L ZZ 'whom it may concern Be it known that. we, WILLIAM L. PATTER- soN' and GUsTAv A. H. KELLNEB, both of i Rochester, inthe county of Monroe and `as will'be hereinafter more full y Figure 1 is a.

State of New York, haveinvented certain new and useful Improvements in Microscopes ;and we do hereby. declare the following to be ak full, clear, and exact description of the same, reference being hadI to the accompan ing drawings, forming a part of this speci cation, and to the reference characters marked thereon.. f

y Our invention relatesto microscopes and this a plication is a division'ofl an application led by us on the 27th'of December, 1915, Serial No. 68,614, for binocular microlScopes Patent No. 1,225,167, May 8,1917.

The present invention has forits object Ato' effect an arran ement of parts combining the advantages o both binocular and Vmonocular types of microscopes in whichkthe binocular instrument, having convergently arranged oculars shall have an mterpupilary adjustment which may be efected by the vrotation of said oculars.y To these and other constructed according to our invention,

parts of the instrument being shown in section.

Fig. 2 is a front elevation showing the various parts embodying the invention 1n assembled position; s

Fig. 3 is an enlarged vertical sectional elevation of the single objective prism box shown in Fig. 1;

Fig. 4 is a verticaly section on an enlarged scale of the twin objective mounting shown lin Fig. 2;

Fig. 5 is an enlarged sectional view taken on line a/-a of Fig. 1, showing the means of adjusting the oculars, and

Fig. 6is a perspectiver view of an ocular prism system for erecting an 1ma and permitting the oculars to be adjus laterally relatively to each other.

Similar reference characters throughout the severa] views indicate the same parts.

The present invention compreheuds a microscope having an objective prism system'functioning between a single objective and a pair of convergently arranged oculars, rotatable to yeffect adjustment of the i interpupilary distance thereof, said prism system serving to `direct a portion, of the light received from the objective into each o the oculars.

In another arrangementof the parts conl templated by the invention, as shown in Fig. 2, the single objective together with its prism box shown in Fig. 1 may be removed and the twin objectives substituted therefor. In this form of instrument for erecting the image are carried 1n the separate casings and the oculars are mounted thereon, whilek in the first mentioned disrisms position of the parts the objective prism system 1s carried in a single casing and associated with the objective. l

In the drawings, v1 indicates the microscope base, upon which is mounted the pillar 2 carrying the arm 3 which may be pivotally connected with or rigidly secured to the pillar. Extending from the lower end of the arm is a microscope sta e 4 and carried beneath the latter is a con enser mounting 5 and mirror 6. The coarse rack and pinion adjustment for the ,lens tube is indicated b 7 and the fine adjustment mechanism y 8. The body tube-member and associated parts are mountedrupon a slidewaiv 9. n' he body tube-member indicated by 10,is

provided with converging bores 11 forming light passages therethrough. In Fig. 1 the extensions 12 of the non-erectingr oculars 13 are projected into the bores, while in Fig. 2

the extensions 14 of the erecting prismcasings 15 are rotatably mounted within said bores, the prisms therein being indicated by dotted lines at 15, The non-erecting oculars 13 are suited for use either in connectionwith the single objective 16, depending from the objective prism box 17, or with the twin objectives 18 on the mounting 19 shown in Figs. 2 and 4. Themounting 19 is similarly constructed to the 'portion 20 of the prism box 17 so that these parts are interchangeable, whereby the prism box 17 carryin the single ob'ective 16, may be remove and replaced y the twin Vobjec- `tives 18 on the mounting ,19, or vice versa.

The isingle obiectiife 16 also lreil'ic'n-fably connected IW-ithnthe prisni ybox l1 nso, that Qibhcr cbjectiye's. 111.21375 if desired.,v be sLibSlf; tuted for theone shown. s

The 'converging non-erecting oculare-,l comprise the upper extension tubes 21pm-` vidcdf with, thc flanges' 22" Scfiicdfcpcii the..

boytubefinember 10. f Cooperating with the extension v21 is a V'tubular member which carries an'e'yepiece comprising' eyeiens 243 c iichiflens. 2.5, diaphragm 26 and, `fi,.Suitfibk cmi. cfa .screw 29.1;hrcadcti info member., 2.3:',

.as vSiiQWii. Ligrv 45- A. scale 'ii0 v isprcyided on member 23. and/coperaties 'Wiiihfaii mdc;

f 31;l to. iaciiitatcfthcrctary adjustment. 'Ofjthc tubular member 'to' insuiegthclpicpcr iiitcir pupilar distance oi the'eye lenseslyftbeing attainc-.... The angie of cciivcrgciicc ci. thc ixcsot blcrcc, llrisls'uchthet tiicliics ci; .Sightfrom' cycflciiscs 24: converge. at. .an angle prf- .1.1.1 ,Fig-.2 the. tcipiipilary distiic'c' lf. thc 14?; isc. listed. vvby rctaticu 4.ct-'the erecting ca siiigsfl, 'upon which thc @calins arc. ccceiitriiiyiintimated; ihcfoculars.. bcingfalsc cccctricaliyl arranged; with respect. tcl'tiicr` tubular 'Prcicctclils' lfi at thc bottomv of' the casi-,ugs which, arc j'curnalesi in thc bores .cf .thc tiibc-ilicmbcL 1 t .objective Prism .system functiciiing between the.; .1.3 and cbicctii'cf 16,. is clearly shown in Eig,y Within the bci; 1.7 are. mounted; thc prisms .and which arc ccmcntcd .tcgcthcr atthcir cciitacting'sur- .and .thereby madcpralctically integral The prism Sil-where .it .contacts with' Prism' v32 is "prcvidcd `with. hilf Siifidc. Silver' iilm which. divides the. light rays.' received ircm rthc directicii 'of Objective. XS'A and dilccfi's crie-half ci. thcrayfilcng ocular axis. B and the other half' along ocular'axi'siG. The reficcting Surface. `3.5, of. Prism 34 and, Surface 3.6. of 'mism'. 5,2,` are, Preferably .Siiifcrcsi Thc Prism .System iustfdcscribcdgrricy-bc dc5- griatcdas a.p.rii1iary Obie@ *Je prism. SYS.- tem`r and, @coating-therewith is.; apple'- mentary Pllilii.33',` thc surface. 38 yci.wliichgis 'preferably slvcrcd- .These prisms.' are LSlippcrtcd., by any,Suitablegnicaiimeuntcdjnpcii and npWarfdir-ection alongtheV line @we and entering. ibeycpccc. 01`--0C11lfir erecting systeml whereby "thef iin'age Viewed :stands erect and i whicht yfor .'nian'y"` Lpurposes .Where a slight loss of light due to the added reflections and. the amount, of`

" parts 'described it Will-be seen that We thus have an nstrumentyvherein a twin objectiveI is. interchangeable with .a scsngic 'Qbicciivc i ,1r- Thic'iypccf ccliir prism picvidcc. an:

giassto ejtraversedis not a; Ydetriniental feature. By ne'ansf-ofi'theVIV combination' of having rriciiitfijc' erecting .sysfclilsciczinfcrchangera with sin. ple' eyepieesuch as the S 11.8 SLhQWii. iIiFigl if f.

'carryin' Islele/yes"1inonnte' in alinernent-With.

'saidliiu 'tfr passagegineans for effecting 1onchr inifpipiifyfdistance of thc occa-rs,

'and cbic'ciivc .System 'ccmrfis'iligcanf cbf 'Vlectlie arranged-with its axis bisecting kthe ingle cfldivcgcncc 10i" Said iightpassages. '1n 'blleclilarmicrcsccpe 'a' body tubemember ,hivllig 'a' pairoffldivergethght pas carrying sleeves 1irc'itat/able2 to" effect adjustment ofthe interpnpiiary .distance.`of"the oonlars,l,an objective system"'bcgneath said 'pupila' ...dista fthe. Qciilrcfib'if'fcwticn 1 1.1241111?. inc lai microscpc., c bod'- iiibcf- Alnelgnber ha 1ay pairofdiyrglent-lgt` pas- 'body rubimember and; cbjcccvevfpfisms functioning 14between ther objective System Y and the oclilars to, direct- 'thlightl received .the .oculare 4. in afi'icrosrcope a'tW-in'body tribe-inem# z'from5'said'fsystenthrough said passagesinto ber havinga pair ofV convergingiight passages ryingslfeeyes Iiionntedinalinement withsaid light'pas'sages andarrangedto befadjustfed relatively to the body meinber'with -a helical motion to adjust' the interpupi-lary distance :of the ocularsga sca-1e and ind'exfcoperat-ing toindicate the interpupilary distaneof the oclilar'sv?)l yan lobj, 'ectivecomprising van o'bJectlve arranged y with its` axis" bisecting the` angle. of divergence of l saidl flight 'pas-A :sagesh and anV objective prism functioning fbeltweenthe. objective and" the' .oculars; -to-l direct af'portion of the iightreceivegil from' the objective. through saidl passages intol each l 95.* -'n attach-nientffor rmicroscopes having 130 a binocular body tube-member, said attachment consisting in the combination of a pair of light passages adapted to be divergently carried by the ocular end of said body tube member, a pair of ocular carrying sleeves mounted in alinement with said light pas sages and adapted to be adjustable with relation thereto with a helical motion to adjust the interpupilary distance of the oculars, a. scale and index coperating to indicate the nterpupilary distance of the oculars,

an objective system comprising an objective arranged with its axis bisecting the angle of divergence of said light passages and an objective prism unctionin between the objective and the oculars to irect a portion of the light received from the objective into each ocular, and a support for the objective system adapted to be carried by the objective end of the body tube.

WILLIAM L. PATTERSON.

GUSTAV A. H. KELLNER.

Copies ot this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

